Impedance matched dielectric window

Wave transmission lines and networks – Coupling networks – With impedance matching

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Details

333252, H01P 108, H01P 502

Patent

active

043587445

ABSTRACT:
The microwave window is inserted in a rectangular waveguide and is constituted by a half-wave impedance transformer, the wavelength considered being such as to correspond to the central frequency F.sub.0 for which the window has been realized; a dielectric plate of small thickness is mounted above the transformer and two inductive shutters are located on each side of the plate. The dimensions of the window components are so determined that in the case of a matched waveguide, the standing-wave ratio of the window is substantially 1 in a frequency band of at least 35% of the central frequency around the central frequency.

REFERENCES:
patent: 3439296 (1969-04-01), Buckley
patent: 3593224 (1971-07-01), Eggers et al.

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